From: Andrew Bresticker <[email protected]> USB host controllers can take a significant amount of time to suspend and resume, adding several hundred miliseconds to the kernel resume time. Since the XHCI controller has no outside dependencies (other than clocks, which are suspended late/resumed early), allow it to suspend and resume asynchronously.
Signed-off-by: Andrew Bresticker <[email protected]> Tested-by: Andrew Bresticker <[email protected]> Tested-by: Robert Foss <[email protected]> Signed-off-by: Robert Foss <[email protected]> --- drivers/usb/host/xhci-plat.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index ba4efe74f537..c35b7fe3c999 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -248,6 +248,7 @@ static int xhci_plat_probe(struct platform_device *pdev) pm_runtime_set_active(&pdev->dev); pm_runtime_enable(&pdev->dev); + device_enable_async_suspend(&pdev->dev); return 0; -- 2.11.0
